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use core::ops::AddAssign;
use slice_trait::Slice;
#[const_trait]
pub trait SliceIntegrate<T>: Slice<Item = T>
{
/// Integrates the slice in-place.
///
/// Each value will be added by the sum of all previous values.
///
/// # Example
///
/// ```rust
/// use slice_ops::ops::*;
///
/// let mut x = [1, 5, 5, 6, 2, -1, 0, 0, 0];
///
/// x.integrate();
///
/// assert_eq!(x, [1, 6, 11, 17, 19, 18, 18, 18, 18]);
///
/// x.differentiate();
///
/// assert_eq!(x, [1, 5, 5, 6, 2, -1, 0, 0, 0]);
/// ```
fn integrate(&mut self)
where
T: AddAssign<T> + Copy;
}
impl<T> SliceIntegrate<T> for [T]
{
fn integrate(&mut self)
where
T: AddAssign<T> + Copy
{
let len = self.len();
let mut i = 1;
while i < len
{
self[i] += self[i - 1];
i += 1;
}
}
}
#[cfg(test)]
mod test
{
#[test]
fn it_works()
{
}
}